Extremis humans vs. Cybermen (Nightmare in Silver)

15 humans on Extremis and an equal number of Cybermen from Nightmare in Silver are put in the castle from the climax of the aforementioned episode. The Extremis users mistake the Cybermen for Iron Men and try and kill them.
If more details are needed, please tell me. What happens?

This. The Extremis forces kill a single Dalek-lite, I mean NIS Cyberman, and are then mulched by the 14 others who have now become resistant to temperatures in excess of 3000 degrees. Hilarious curbstomp.

This. The Extremis forces kill a single Dalek-lite, I mean NIS Cyberman, and are then mulched by the 14 others who have now become resistant to temperatures in excess of 3000 degrees. Hilarious curbstomp.